Chemical-pharmaceutical analysis may be defined as a procedure or the sequences of progressions to identify or quantify a constituent or drug, the mechanisms of a pharmaceutical solution or fusion or the determination of the structures of chemical combinations used in the formulation of pharmaceutical product. Journal article is sometimes called a scientific article, a peer-reviewed article, or a scholarly research article. together, journal articles in a particular field are often referred to as the literature. Journal articles are most often primary research articles. however, they can also be review articles.